Puerto Rican Population in Montgomery County, MD by City : 2025 Ranking & Insights

The Puerto Rican population in Montgomery County, MD is reported at 11,389 residents, according to recent U.S. Census estimates. Several cities in Montgomery County - including Gaithersburg, Rockville, Kensington, and others - contribute to the Puerto Rican population, but the total county figure of 11,389 indicates additional presence beyond municipal borders. The sections below explores how Puerto Rican residents are distributed in Maryland and the U.S.

Top 5 cities with the largest Puerto Rican population in Montgomery County

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  • 1
    Gaithersburg
    Puerto Rican population in Gaithersburg is 532
    0.77% of Gaithersburg population is Puerto Rican
  • 2
    Rockville
    Puerto Rican population in Rockville is 529
    0.79% of Rockville population is Puerto Rican
  • 3
    Kensington
    Puerto Rican population in Kensington is 73
    3.25% of Kensington population is Puerto Rican
  • 4
    Takoma Park
    Puerto Rican population in Takoma Park is 60
    0.34% of Takoma Park population is Puerto Rican
  • 5
    Chevy Chase Section Three
    Puerto Rican population in Chevy Chase Section Three is 30
    3.05% of Chevy Chase Section Three population is Puerto Rican

Overview of Puerto Rican population in Montgomery County

  • Population Count and Percentage: American Community Survey data shows Montgomery County contains 11,389 Puerto Rican residents (1.1% of 1.1 million total county population), ranking the jurisdiction at the 96th percentile nationally among counties and 95th percentile within Maryland for Puerto Rican demographic concentrations across both absolute and proportional measures.
  • Comparison to State and National Averages: Census Bureau's ACS data indicate Montgomery County's Puerto Rican population of 1.1% remains below Maryland's state average of 1.1% and the national average of 1.8%, placing the county below demographic benchmarks across multiple geographic scales.
  • Share of Total State Population: Official American Community Survey indicate Montgomery County's 11,389 Puerto Rican residents constitute 16.7% of Maryland's total Puerto Rican population of 68,142, placing the county among jurisdictions with the highest demographic concentrations, with 16.7% of all Maryland Puerto Ricans residing within county boundaries.
  • Population Density per Square Mile: U.S. Census Bureau's American Community Survey indicate Montgomery County's density of 23.1 Puerto Ricans per square mile exceeds Maryland's average of 7 per square mile by three and one-quarter times, establishing the county as a significant concentration center for Puerto Rican demographic communities.
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15 Cities in Montgomery County Ranked by Puerto Rican Population

View Methodology
ACS data [1] show Puerto Rican populations distributed across multiple cities in the county, led by Gaithersburg, Rockville, Kensington, and Takoma Park. The table below provides additional context, including total population, population density, and demographic distributions, based on current ACS data for 15 incorporated cities included in this analysis*.
cities in Montgomery County, MD ranked by Puerto Rican population count
Rank by Puerto Rican Population
City
Puerto Rican Population
% of Total City Population
% of Total Montgomery County Puerto Rican Population
5 Year Rank Trend
1 Gaithersburg 532 0.77% 4.67%
2 Rockville 529 0.79% 4.64%
3 Kensington 73 3.25% 0.64%
4 Takoma Park 60 0.34% 0.53%
5 Chevy Chase Section Three 30 3.05% 0.26%
6 Poolesville 26 0.46% 0.23%
7 Chevy Chase Village 14 0.75% 0.12%
8 9 1.03% 0.08%
9 7 0.69% 0.06%
10 5 0.67% 0.04%
11 4 0.39% 0.04%
12 3 0.10% 0.03%
13 2 0.29% 0.02%
14 0 - -
14 0 - -
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Methodology

This ranking list is based on data from the American Community Survey (ACS) 5-Year Estimates, conducted by the U.S. Census Bureau. The ACS is one of the most reliable sources for understanding population trends across different locations, and it provides estimates for various racial and ethnic groups at city, county, state and all geography levels down to the Census block group.
This list ranks city in Montgomery County, MD by their Puerto Rican population, using the most recent ACS data available.

How the Census defines Puerto Rican population

The U.S. Census Bureau allows people to self-identify their ancestry, meaning individuals can write upto ancestries when responding to the survey. In this ranking, we include everyone who identifies as having Puerto Rican ancestry, whether alone or in combination with another ancestry.
Here are a few important things to know about how ancestry is reported:
  • Some people identify as Puerto Rican alone, while others identify as Puerto Rican along with another race (such as Puerto Rican and German).
  • We’ve used the “Puerto Rican alone or in any combination” category unless noted otherwise, which gives a broader picture of the Puerto Rican population in each area.

How We Ranked the Data

This ranking is based on the total number of people who identified as Puerto Rican alone or in combination in city. To provide additional context, we’ve also included two key percentages:
  1. % of Total City Population – This shows what percentage of the total state population identifies as Puerto Rican .
  2. % of Total Montgomery County Puerto Rican Population – This tells us how much of the entire U.S. Puerto Rican population lives in that state.
To keep things simple, all population numbers have been rounded to the nearest whole number, and percentages are rounded to one decimal place. Because of rounding, some percentages may not add up to exactly 100%.

Things to Keep in Mind

Like all survey-based data, ACS estimates come with some limitations. Here are a few things to be aware of:
  • In places with very small Puerto Rican populations, the numbers may not be reported at all due to privacy protections or sampling variability in the survey.
  • Since the ACS is based on a sample, the numbers are estimates, not exact counts. That means they may slightly differ from other sources like the decennial U.S. Census.
  • City that don’t have any reported Puerto Rican population are not included in the ranking but are listed separately below for reference.
This ranking is meant to provide a clear, data-driven look at where Puerto Rican populations are most concentrated while keeping the numbers easy to understand.

Sources

  1. 2019-2023 5-Year Estimates.
  2. 2023.